I mostly notice them when the Flash ads screw up somehow, but the recent ones have all this blinking junk and seem to be really low quality stuff you see on scam sites and low-ranked pages. Usually it is relevant stuff like ads for TiVo or AT&T.

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The TOS for the Internet clearly notes there will be people who display their ignorance without giving any warning and indeed are likely unaware they are displaying their ignorance for all to see.